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alysia

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what is 20 x 3 1/2 pls my math is so horrible pls & thank u

Oct 7, 2021

#1
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I'm assuming 3 1/2 is a mixed fraction.

If you get confused with mixed fractions, you can always convert them to normal fractions like $$\frac{1}{2}$$

$$3\frac{1}{2}$$ converts to $$\frac{7}{2}$$. You can find this by multiply the denominator(bottom of the fraction) by the integer part then adding the numerator(top of the fraction). You get $$3 \cdot 2 + 1 = 7$$. Then divide that by the denominator or $$2$$ to get $$\frac{7}{2}$$$$\frac{7}{2} \cdot 20 = 70$$ because the $$2$$ in the denominator cancels out with the $$2$$ in the $$20$$. Remember that $$20 = 2 \cdot 10$$ which is why they cancel.

$$70$$ is your answer.

Oct 7, 2021